FN Archimer Export Format
PT J
TI Biomass of slow life history species increases as local bottom trawl effort decreases in the Celtic sea
BT 
AF Mérillet, Laurene
   Pavoine, Sandrine
   Kopp, Dorothee
   ROBERT, Marianne
   Mouchet, Maud
AS 1:1,2,3;2:1;3:2;4:2;5:1;
FF 1:PDG-RBE-STH-LTBH;2:;3:PDG-RBE-STH-LTBH;4:PDG-RBE-STH-LTBH;5:;
C1 UMR 7204 MNHN-UPMC-CNRS Centre d’Ecologie et de Sciences de la COnservation, 43 Rue Buffon, CP135, 75005, Paris, France
   Ifremer, Unité de Sciences et Technologies Halieutiques, Laboratoire de Technologie et Biologie Halieutique, 8 Rue François Toullec, 56100, Lorient, France
   Institute of Marine Research (Havforskningsinstituttet), Ecosystem Processes Team, Nordnesgaten 33, 5005, Bergen, Norway
C2 MNHN, FRANCE
   IFREMER, FRANCE
   IMR (BERGEN), NORWAY
SI LORIENT
SE PDG-RBE-STH-LTBH
IN WOS Ifremer UPR
   copubli-france
   copubli-europe
IF 8.91
TC 0
UR https://archimer.ifremer.fr/doc/00690/80238/83355.pdf
LA English
DT Article
CR EVHOE EVALUATION HALIEUTIQUE OUEST DE L'EUROPE
DE ;Community weighted mean;Assembly processes;Biological traits;Elasmobranchs;Area closure
AB Due to its selective removal, fishing pressure has long influenced the dynamics of species based on their life history traits. Sensitivity to fishing increases along a “fast-to-slow” gradient of life history strategies, and the “slow” species (large, long-lived, late-maturing, giving birth to few large offspring) require the most time to recover from fishing. In the North East Atlantic, after having reached extreme levels, fishing pressure has decreased since the 1980's due to management measures such as total allowable catch (TAC) or area closure. An effect on the distribution of species as well as a potential recovery could be expected. However, temporal patterns of life history strategies are rarely linked to management measures. In addition, a larger emphasis is often put on exploited or emblematic sensitive species but rarely on assembly processes at the ecosystem scale (both commercial and non-commercial species). Based on a 17-year time series of 101 taxa (fishes, elasmobranchs, bivalves, cephalopods and crustaceans), we observed a negative relationship between the biomass of taxa sensitive to fishing and bottom trawling pressure, as well as an increase in their total biomass in the Celtic Sea. Over the whole area, stochasticity appeared as the dominant assembly process. Deterministic assembly processes were at play in the centre of the area where significant overdispersion (caused by the presence of both slow and fast taxa) were observed. The absence of sensitive taxa from the rest of the Celtic Sea appeared to be caused mainly by a historical effect of environmental filtering when fishing was high. At the local scale, we related the decrease in fishing pressure to the increase in biomass of five of the most sensitive taxa. This local decrease in fishing pressure, resulting from the implementation of an area closure, highlights the positive effect of such management measures in less than two decades. 
PY 2021
PD JUN
SO Journal Of Environmental Management
SN 0301-4797
PU Elsevier BV
VL 290
UT 000656473100005
DI 10.1016/j.jenvman.2021.112634
ID 80238
ER

EF